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www.911review.com...
Seismographs at Columbia University's Lamont-Doherty Earth Observatory in Palisades, N.Y., 21 miles north of the WTC, recorded strange seismic activity on Sept. 11 that has still not been explained.
While the aircraft crashes caused minimal earth shaking, significant earthquakes with unusual spikes occurred at the beginning of each collapse.
The Palisades seismic data recorded a 2.1 magnitude earthquake during the 10-second collapse of the South Tower at 9:59:04 and a 2.3 quake during the 8-second collapse of the North Tower at 10:28:31.
However, the Palisades seismic record shows that-as the collapses began-a huge seismic "spike" marked the moment the greatest energy went into the ground. The strongest jolts were all registered at the beginning of the collapses, well before the falling debris struck the Earth.
These unexplained "spikes" in the seismic data lend credence to the theory that massive explosions at the base of the towers caused the collapses.
A "sharp spike of short duration" is how seismologist Thorne Lay of University of California at Santa Cruz told AFP an underground nuclear explosion appears on a seismograph.
The two unexplained spikes are more than 20 times the amplitude of the other seismic waves associated with the collapses and occurred in the East-West seismic recording as the buildings began to fall.
Experts cannot explain why the seismic waves peaked before the towers actually hit the ground.
Originally posted by SteveR
Pure fusion devices are the only weapons that fit the bill, from what we know so far. Concrete pulverized to 30 microns, molten steel under constant attention for months, and unexplained seismic shocks are the biggest telltale signs. Patterns in landmark dates are also interesting, complete retirement of SADM's with no replacement in '89, the abrupt ending of the longtime pure fusion device research in '92, WTC attack in '93.. etcetera.
Originally posted by SteveR
Pure fusion devices are the only weapons that fit the bill, from what we know so far. Concrete pulverized to 30 microns, molten steel under constant attention for months, and unexplained seismic shocks are the biggest telltale signs.
www.popularmechanics.com...
"There is no scientific basis for the conclusion that explosions brought down the towers," Lerner-Lam tells PM. "That representation of our work is categorically incorrect and not in context."
Originally posted by bsbray11
Is it the overpressures that pulverize the concrete like that, but leave paper and steel intact?
Originally posted by bsbray11
Originally posted by mbkennel
Nobody has demonstrated any thermonuclear ignition of substantial magnitude without a fission weapon primary. Certainly nothing remotely weaponized or weaponizable.
Which is why we're all working under the hypothetical assumption that these devices exist, thus accounting for many issues with the collapses unresolved by anything else, be it falling steel and concrete, high explosives, or thermite reactions.
Unless you're going to prove a negative, or else exactly what achievements military organizations have made under so much classification, then there's not much you can add here.
Originally posted by Wizard_In_The_Woods
Dear debate:
Hallelujah! Yours is the post we’ve been waiting for! A mathematical analysis of the energy amounts necessary to pulverize the concrete of the WTC’s.
You’ve listed a treasure-trove of revealing links. I’m not quite sure how you arrived at the 4 million kWh energy for pulverization of 14,400 tons of concrete to 0.3 microns. But I’ve probably overlooked something.
Originally posted by Wizard_In_The_Woods
Dear "debate":
Thanks for the clarification. 4 million kWh is the energy amount found in 3,429 U.S.-tons of TNT. Gees, I still have to get used to this kWh thing as a way of describing energy. I would be much more comfortable using Joules. But hey, I'm just copying what seems to be common practice.
Greetings,
The Wizard In The Woods
Originally posted by jab712
Bsbray,
Can you clarify your comment here? Are you saying that if someone can't proove that something doesn't exist that it does, just because the military's achievements are classified and we don't know what they are capable of?
From: "Leuren Moret"
Originally posted by LeftBehind
Please show us some proof that there was molten steel for months. There was certainly molten material at ground zero, and the underground fires led to molten material being uncovered, but by no means has it been proven that there was molten steel, especially not for months.
Originally posted by LeftBehind
"There is no scientific basis for the conclusion that explosions brought down the towers," Lerner-Lam tells PM. "That representation of our work is categorically incorrect and not in context."
Originally posted by SteveR
Please show us some proof that there was molten steel for months. There was certainly molten material at ground zero, and the underground fires led to molten material being uncovered, but by no means has it been proven that there was molten steel, especially not for months.
Originally posted by 2stepsfromtop
Just a few dumb insights here:
Attachment Bolts are rated to certain amounts of strength, so if the bolts fastening the concrete/steel floors to the framework of the building were overloaded then wouldn't they shear in line with the downward force?
Collapsing floors would generate a great deal of pressure on each lower floor, dosn't pressure = heat?
Enough heat to melt the steel?
Papers could survive if they were from the higher floors, but because of immense pressure wouldn't everyting on the lower floors just kind of disintegrate?
Originally posted by SteveR
That quote in popular mechanics means nothing to me.
The actual data, does.
Originally posted by 2stepsfromtop
Attachment Bolts are rated to certain amounts of strength, so if the bolts fastening the concrete/steel floors to the framework of the building were overloaded then wouldn't they shear in line with the downward force?
Collapsing floors would generate a great deal of pressure on each lower floor, dosn't pressure = heat?
Enough heat to melt the steel?